varix /va·rix/ (var´iks) pl. va´rices [L.] an enlarged tortuous vein, artery, or lymphatic vessel.
esophageal varices,
varix [vār´iks] (L.)
esophageal varices
aneurysmal varix a markedly dilated tortuous vessel.
arterial varix a racemose aneurysm or varicose artery.
esophageal varices varicosities of branches of the azygos vein which anastomose with tributaries of the portal vein in the lower esophagus, due to portal hypertension in cirrhosis.
lymph varix , varix lympha´ticus a soft, lobulated swelling of a lymph node, due to obstruction of lymphatic vessels.
| esophageal varices n. Longitudinal, superficial venous varices at the lower end of the esophagus that are prone to ulceration and massive bleeding. |
esophageal varices,
a complex of longitudinal tortuous veins at the lower end of the esophagus, enlarged and swollen as the result of portal hypertension. These vessels are especially susceptible to hemorrhage. Conditions that can cause portal hypertension include cirrhosis and chronic hepatitis.
varix [vār´iks] (L.)
an enlarged, tortuous vein, artery, or lymphatic vessel.
aneurysmal varix a markedly dilated tortuous vessel; sometimes used to denote a form of arteriovenous aneurysm in which the blood flows directly into a neighboring vein without the intervention of a connecting sac.
arterial varix a racemose aneurysm or varicose artery.
esophageal varices varicosities of branches of the azygous vein which anastomose with tributaries of the portal vein in the lower esophagus; due to portal hypertension in cirrhosis of the liver.
lymph varix (varix lympha´ticus) a soft, lobulated swelling of a lymph node due to obstruction of lymphatic vessels.
esophageal
of or pertaining to the esophagus.
esophageal achalasia
see megaesophagus.
esophageal anomalies
very rare; include atresia, duplication, segmental aplasia, esophagorespiratory fistulae, diverticula, epithelial inclusion cysts.
esophageal atresia
congenital lack of continuity of the esophagus, commonly accompanied by tracheoesophageal fistula, and characterized by accumulations of mucus in the nasopharynx, gagging, vomiting when fed, cyanosis and dyspnea. Treatment is by surgical repair by esophageal anastomosis and division of the fistula.
esophageal distention
may result from acute or chronic obstruction of the esophagus, or from defective innervation. See also megaesophagus.
esophageal duplication
may be tubular and communicate with the effective esophagus, or cystic appearing as a cystic mass close to the functioning esophagus.
esophageal ectasia
see megaesophagus.
esophageal enlargement
clinically visible enlargement as seen in esophageal diverticulum, stenosis, paralysis, cardial obstruction.
esophageal fibrosis
a cause of acquired megaesophagus; usually caused by trauma or spontaneous ulceration.
esophageal groove
see reticular groove.
esophageal groove lesion
includes granuloma, papilloma, foreign body lodgment; cause of obstructive bloat.
esophageal hyperkeratosis
hyperkeratotic thickening of the esophageal mucosa due usually to hypovitaminosis A or chlorinated naphthalene poisoning.
esophageal inflammation
see esophagitis.
esophageal motility disorders
see megaesophagus.
esophageal neoplasm
very rare except for papilloma and fibropapilloma; causes chronic esophageal obstruction.
esophageal obstruction
acute obstruction is manifested by inability to swallow, regurgitation of saliva, food and water through the nose and much discomfort expressed by retching movements and pawing at the throat. Ruminants develop ruminal tympany. Chronic obstruction shows the same syndrome but with a gradual development and a tendency to develop aspiration pneumonia.
)
Palpating an esophageal obstruction in a cow. By permission from Blowey RW, Weaver AD, Diseases and Disorders of Cattle, Mosby, 1997
esophageal osteosarcoma
occurs in dogs in association with the parasite Spirocerca lupi.
esophageal papilloma
a cause of obstructive bloat.
esophageal paralysis
causes esophageal obstruction.
esophageal patching
see patch graft.
esophageal perforation
causes local cellulitis and compression-obstruction of esophagus.
esophageal pulsion diverticulum
a diverticulum that pushes outwards causing pressure on surrounding organs and tissues.
esophageal segmental aplasia
causes esophageal obstruction in neonates.
esophageal stenosis, esophageal stricture
causes esophageal obstruction; may be partial, permitting passage of liquids.
esophageal tube
see nasogastric tube.
esophageal ulcer
usually associated with pressure necrosis due to prolonged obstruction and injury by a solid foreign body or, rarely equine dysautonomia or Gasterophilus spp. infestation.
esophageal varices
distended veins at the gastric cardia causing dysphagia.
esophageal varices
The presence of varices under the esophageal mucosa, which most commonly occurs in a background of advanced liver disease Etiology Portal HTN, schistosomiasis Management Acute hemorrhage of EVs is treated by balloon
compression; rebleeding is common, and is preemptively managed with endoscopic sclerotherapy, which in turn is often complicated by rebleeding, stenosis, & esophageal ulceration; some data suggest that combined modality therapy with a
β-blocking agent–nadolol, propranolol and an anti-hypertensive–isosorbide mononitrate is better than endoscopic sclerotherapy in treating EVs Prognosis Good if unrelated to cirrhosis. See Endoscopic sclerotherapy, Nadolol with
isosorbide mononitrate.
Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.
| ?Page tools | ||
|---|---|---|
|